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Chemical Reactions
Chemical Reactions

... the maximum amount of product that is formed. The limiting reactant will be completely used up in a reaction. This makes the reaction stop. The other reactant will have some unchanged so it is said to be the excess reactant. For example, if you need to make 10 chicken sandwiches. You have 10 slices ...
aldehydes and ketones
aldehydes and ketones

PowerPoint - Organic Chemistry
PowerPoint - Organic Chemistry

... “Examples” in table 24.1 • Each member must have the exact same molecule (thus you must agree on structure) • Show me the structure(s) after building each ...
DEPARTMENT OF CHEMISTRY
DEPARTMENT OF CHEMISTRY

... ethanol. Show lone pairs, electron pushing arrows, 3-D view to reflect appropriate stereochemistry, reactants, intermediates, and products. You do not have to show transition states. Name the product. Draw and completely label a reaction energy diagram corresponding to the mechanism you have drawn. ...
Chemical Reactions
Chemical Reactions

... 1. Fe2O3 + H2  Fe + H 2O Compare the number of each atom in the reactants to the 2. Fe 21 number of the same atom in the 1. O 31 product 2. H 22 Pick one of the unequal atoms 3.Fe2O3 + H2  2Fe and multiply the compound by + H 2O a number so that the atoms are Write the skeleton equation ...
On the Transition States of Electrophilic Radical Additions to Alkenes
On the Transition States of Electrophilic Radical Additions to Alkenes

Chemical Equations
Chemical Equations

... law of conservation of mass. The mass of the reactants equals the mass of the products in ordinary chemical reactions. ...
Contents CONCEPT Introduction to Structure of Atom Dalton`s
Contents CONCEPT Introduction to Structure of Atom Dalton`s

... Classification of Organic Compounds based on structure Priority order of functional groups IUPAC Nomenclature of Organic Prefixes and suffixes for functional groups Compounds Derivation of structural formula from a given IUPAC name and vice-versa Structural isomerism Stereochemistry and stereoisomer ...
Organic Chemistry II Introduction
Organic Chemistry II Introduction

Alcohols/Wade
Alcohols/Wade

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Working with Hazardous Chemicals

Chapter 18 Reactions of aromatics
Chapter 18 Reactions of aromatics

Chapter 7 - people.vcu.edu
Chapter 7 - people.vcu.edu

... o Sigma bonds are stronger than pi bonds o But remember that a double bond is the sum of the two, so it is stronger than a single bond Elements of unsaturation o For every pi bond or ring you lose two hydrogens.  These are called elements of unsaturation because now the molecule doesn’t have as man ...
Exam 2-f06 - Clayton State University
Exam 2-f06 - Clayton State University

... 8.) The equilibrium constant, Kc for the following gas phase reaction is 0.50 at 600°C. A mixture of HCHO, H and CO is introduced into a flask at 600°C. After a short time, analysis of a small amount of the reaction mixture shows the concentration to be [HCHO] = 1.5M, [H2] = 1.2 M and [CO] = 1.0M. W ...
Reacciones redox
Reacciones redox

Unit 4 - INTEC Chemistry Blog
Unit 4 - INTEC Chemistry Blog

... Redox (reduction oxidation reaction) describes / all chemical reactions in which atoms have their oxidation number/state changed Oxidation state is the hypothetical charge that an atom would have if all bonds to atoms of different elements were 100% ionic Oxidation describes the loss of electrons by ...
Organic Chemistry
Organic Chemistry

... Crossed Enolate Reactions using LDA • Equilibrium among enolate anions is established when the ketone is in slight excess, a condition under which it is possible for proton-transfer reactions to occur between an enolate and an a-hydrogen of an unreacted ketone. Thus, equilibrium is established betw ...
Chemistry 209 - Experiment #4
Chemistry 209 - Experiment #4

... Prepare an ice/water bath; this may be conveniently done in a large (i.e., > 500 mL) beaker. Place 20 mL of 70% 2-propanol in a 250-mL beaker, and add 20 mL of distilled H2O. Stir to mix, and cool the beaker in an ice bath to about 10C. With the solution still in the ice bath, add, all at once, 100 ...
Chapter 4 - U of L Class Index
Chapter 4 - U of L Class Index

... e.g. 5 L of a potassium iodide solution is reacted with 500 mL of a lead(II) nitrate solution to produce lead(II) iodide as a yellow solid with a mass of 27.14 g. What was the molarity of the initial lead(II) nitrate solution? (Assume lead(II) nitrate was the limiting reactant.) ...
Cellulose und heterogene Katalyse – Eine
Cellulose und heterogene Katalyse – Eine

... Lignocellulose presents a potential future carbon source for production of fuels and chemicals. The high density of functional groups opens many possibilities for tailored transformations to new target molecules. With regard to catalysis, this overfunctionalization makes high demands on catalyst and ...
H + - uaschemistry
H + - uaschemistry

Programme
Programme

... photoactivity that the intramolecular photoredox reaction was observable even under neutral conditions whereas 2(hydroxymethyl)fluorenone was nearly photoinert. The last topic focuses on the extension of the electronic transmission from the carbonyl functional group to the benzylic alcohol by insert ...
Nucleophilic Addition: The Grignard reagent
Nucleophilic Addition: The Grignard reagent

... stirring rod. If the reaction still doesn’t start after crushing the magnesium several times, you can add a small iodine crystal to the reaction. Once the reaction has started and a brownish gray suspension has begun to form, slowly add the remaining bromobenzene– ether solution over fifteen minute ...
+ H 2
+ H 2

... The Activity Series. ...
Chemistry 211 - MiraCosta College
Chemistry 211 - MiraCosta College

... 4). Perform homework assignments using problems in the text and at the end of every chapter until competency is achieved 5). Prepare at least four formal written lab reports in scientific journal format for experiments performed during the semester 6). Prepare for essay exams that include definition ...
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Asymmetric induction



Asymmetric induction (also enantioinduction) in stereochemistry describes the preferential formation in a chemical reaction of one enantiomer or diastereoisomer over the other as a result of the influence of a chiral feature present in the substrate, reagent, catalyst or environment. Asymmetric induction is a key element in asymmetric synthesis.Asymmetric induction was introduced by Hermann Emil Fischer based on his work on carbohydrates. Several types of induction exist.Internal asymmetric induction makes use of a chiral center bound to the reactive center through a covalent bond and remains so during the reaction. The starting material is often derived from chiral pool synthesis. In relayed asymmetric induction the chiral information is introduced in a separate step and removed again in a separate chemical reaction. Special synthons are called chiral auxiliaries. In external asymmetric induction chiral information is introduced in the transition state through a catalyst of chiral ligand. This method of asymmetric synthesis is economically most desirable.
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